is it poor sleep training if I let my LO sleep after boob

Nicola • My husband & I together 16yrs, married 5yr. Poppy born oct 2016, 4months off the pill, diagnosed reflux, breast fed baby
My LO falls asleep most of the time on the boob, I sit her up to burp. It she's milk drunk so take her up to her crib to sleep. Is this a bad sleep regime? In the day for her naps she starts looking tired and sleeps alone in the car seat while driving, in the carrier/sling or in her jumparoo. She also has a dummy.